35281

Properties

Appears in sequences

• Quintan primes: p = (x^5 + y^5)/(x + y).at n=20A002650
• Numbers whose least quadratic nonresidue (A020649) is 17.at n=28A025026
• Smallest prime that is simultaneously of forms x^2 + m*y^2 for m = 1, ..., n.at n=13A028372
• Smallest prime that is simultaneously of forms x^2 + m*y^2 for m = 1, ..., n.at n=15A028372
• Smallest prime that is simultaneously of forms x^2 + m*y^2 for m = 1, ..., n.at n=14A028372
• Primes of the form n! - (n-1)! + 1.at n=5A049984
• Primes with 23 as smallest positive primitive root.at n=11A061335
• Primes p such that tau(p-1)+tau(p+1) is larger than for any previous term. (Smallest prime sandwiched between more composite numbers.)at n=30A090481
• Primes that are a concatenation of 3, 5 and a prime.at n=14A101219
• Prime numbers arising from Schorn's proof that there are infinitely many primes.at n=14A104189
• a(n) is the n-th prime of the form n*x^2+1.at n=4A128970
• Primes of the form 5k^2 + 1.at n=4A137530
• Prime numbers p such that p +- ((p-1)/6) are primes.at n=38A137724
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (0, 1, -1), (1, 0, 0), (1, 1, -1), (1, 1, 1)}.at n=8A150595
• Triangle T(n, k) = 2 + n! - k! - (n-k)!, read by rows.at n=37A156045
• Triangle T(n, k) = 2 + n! - k! - (n-k)!, read by rows.at n=43A156045
• a(n) = 20*n^2 + 1.at n=42A158493
• Expansion of Sum_{n>0} n*n!*x^n/(1-n!*x^n).at n=6A158615
• a(n) = 80*n^2 + 1.at n=21A158776
• Triangle T(n, k) = n!*(1/k)*binomial(n-1, k-1)*binomial(n, k-1) - n! + 1, read by rows.at n=17A174694